extjs

问题 How do I convert that instance to XML? I am working with ExtJs 4.2. I have an instance of an ExtJs model. How do I convert that to XML? I have an anonymous JavaScript object (with a couple of properties). I am not sure if the answers for both of the above is same. The XML will be sent as body to a POST operation against a third party web service. 回答1: Converting JSON to XML in JavaScript is blasphemy! But if I had to do it I would use: http://code.google.com/p/x2js/ 回答2: I haven't used this

问题 Is there a way to apply Alternative row css on the child level of a tree grid? Currently the stripeRows config on the treePanel viewConfig just makes everything grey and white, but it is difficult to distinguish the child rows from the parent rows. Ideally I'd like to make the parent objects alternate colors one way and the child rows alternate colors another way. I was thinking of writing a function using the "getRowClass" method to manually update the row class. I was wondering if there was

问题 When a button is clicked, I use addClsOnOver to change the over cls of the button and it works fine. The second time the button is clicked, addClsOnOver is called again but with a different class and this is expected to happen multiple times but unfortunately, the event listeners created by addClsOnOver are not over-written after the first click. I know now that I need to use removeListener() and then addClsOnOver if I want to change it again after the first time but dont know what parameters

问题 I'm digging into something really interesting when combining Extjs and D3. In general, ExtJS renders the main frame for the whole page and D3 to render a dynamic graph in certain div in that frame. As the rendering logic in Extjs is quite complicated, the place where I put the D3 render logic seems crucial. Here I've tried two: 1) put into 'initComponent' [ExtJS] Ext.define('EDS.view.selector.Container', { extend: 'Ext.panel.Panel', alias : 'widget.selectorcontainer', initComponent: function(

问题 After creating an instance of MessageBox like this var msgBox = Ext.create('Ext.window.MessageBox',{draggable: false}); -actually draggable false was set through an override to Ext.window.Window, I'm putting it like this to make it easier to reproduce. - also I do prefer the singleton syntax but there are already a ton of instances created like this in the code I'm working on. msgBox.alert("I am a bug, try to close me to reproduce"); Trying to close this MessabeBox calls the hide method: hide

问题 Until now, I have been querying the data stores using Rally App SDK, however, this time I have to update a story using the js sdk. I tried looking up for examples for some sample code that demonstrates how the App SDK can be used to update/add values in Rally. I have been doing CRUD operations using Ruby Rally API but never really did it with the app sdk. Can anyone provide some sample code or any link to where I could check it out? Thanks 回答1: See this help document on updating and creating

问题 I am working on Extjs 4.1. I did implement an autocomplete feature for the text box. I'm now able to search for student's first or last name by entering a term, for example: Mat, and the result in text field would be: Mathio,Jay << student's first and last name Mark,Matt << student's first and last name Then, I made some changes on the query so that i can get the subjects too when i search for one: Mathio,Jay << student's first and last name Mark,Matt << student's first and last name

问题 In ExtJs, remote data can be easily displayed in a paged grid. But for this to happen, the server side must support paging. Furthermore, local sorting and filtering in a paged grid is not useful, because it only filters the elements of the current page. In order to get consistent results, remote filtering and sorting is required. For buffered stores in infinite scrolling grids the same applies. But this is not always the right solution. Especially when remote data retrieval takes some time,

问题 Is there any chance to get the DOM values of the last selected row inside a grid. I could only get the record with values and not the DOM elements. With DOM elements I mean the <tr> element of the row selected. var selectedRecord = grid.getSelectionModel().getLastSelected(); //only gets the model instance that is selected 回答1: You can use grid's view getNode() method. It returns HTMLElement of the grid record's row. If you want to do something with row HTML element you can use Ext.get()

问题 I am trying to make a RESTful webservice call using Extjs. Below is the code i am using: Ext.Ajax.request({ url: incomingURL , method: 'POST', params: {param1:p1, param2:p2}, success: function(responseObject){ var obj = Ext.decode(responseObject.responseText); alert(obj); }, failure: function(responseObject){ var obj = Ext.decode(responseObject.responseText); alert(obj); } }); but it does not work, the request is sent using OPTIONS method instead of POST. I also tried to do the same thing